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3D-QSAR Analysis on the Fungicidal Activity of N-phenyl-O-phenylthionocarbamate Analogues against Gray Mold (Botrytis cinerea)  

Sung, Nack-Do (Division of Applied Biology and Chemistry, College of Agriculture and Life Sciences, Chungnam National University)
Park, Kee-Han (Bayer CropScience Ltd. Human resourses)
Jang, Seok-Chan (Division of Applied Biology and Chemistry, College of Agriculture and Life Sciences, Chungnam National University)
Soung, Min-Kyu (Peptron Inc. Research Institute)
Publication Information
The Korean Journal of Pesticide Science / v.11, no.2, 2007 , pp. 59-66 More about this Journal
Abstract
Three dimensional quantitative structure-activity relationships (3D-QSARs) on the fungicidal activity of N-phenyl-O-phenylthionocarbamate analogues against resistant and sensitive gray mold (Botrytis cinerea) (RBC & SBC) were studied quantitatively using CoMFA and CoMSIA methods. The correlation coefficient and predict- ability of optimized CoMFA model with the atom based fit alignment were better ($r^2$ & $q^2=CoMFA{\gg}CoMSIA$) than that of CoMSIA model. And statistical values of the models on the fungicidal activity against SBC were showed higher ($r^2=SBC{\gg}RBC$) than that of RBC. In CoMFA models, steric field on the activity was more influenced than electrostatic field. And in case of CoMSIA models, the influence of CoMSIA field on the activity against RBC and SBC was differ from each other but the influence of H-bond donor field was same to the two fungi. It is revealed that the selectivity factor with CoMFA model on the fungicidal activity between the two fungi was caused on the difference of steric field. Therefore, it is predicted that the large steric field with meta- and para-substituents on the N-phenyl ring will be improved to the fungicidal activity with SBC.
Keywords
N-phenyl-O-phenylthionocarbamate analogues; Resistant & Sensitive gray mold (botrytis cinerea); fungicidal activity; CoMFA & CoMSIA;
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Times Cited By KSCI : 1  (Citation Analysis)
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